Boileb flue gleaner



'(No Model.) 2 Sheets-Sheet 1.

W. H HOWE.

BOILER FLUE CLEANER.

No. 566,763. Patented Sept. 1, 1896.

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(No Model.) 2 fiheets-heet 2 W. H. HOWE.

BOILER FLUE CLEANER.

Patented Sept. 1, 1896.

'Urtrrnn STATES PATENT rrica XVILLIAM ll. HOW'E, OF TOLEDO, OHIO, ASSIGNOR TO JOHN SQ HARTSHORN AND HARRY B. WHITE, OF SAME PLACE.

BOlLER-FLUE CLEANER.

SPECIFICATION forming part of Letters Patent No. 566,763, dated September 1, 1896.

Application filed November 25, 1895. Serial No. 669,998. (No model.)

To all whom it may concern: struction is that the steam is carried to a Be it known that I, ILLIAM H. HOWE, of point immediately central of the discharge Toledo, county of Lucas, and State of Ohio, body portion at, and is then projected into the have invented certain new and useful Imsame through the flaring mouth 6, with an proveinents in Boiler-Flue Cleaners; and I expansion to impinge upon the inner periph- 5 5 do hereby declare that the following is a full, cry of the discharge portion 4:, with a result clear, and exact description thereof, which of a uniform pull (caused by the vacuum) will enable others skilled in the art to which upon the nozzle 2 and tube 3. Another adit appertains to make and use the same, refvantage resides in the fact that by extending to orence being had to the accompanying drawthe nozzle 6 (or mouth thereof) to the center ings, and to the letters of reference marked of the discharge body portion 4:, and also exthereon, which form part of this specification. tending the j et-pipe practically horizontally,

My invention relates to a flue-cleaner of the possibility of lodgment of scale, soot, die, that character in which the deposit upon the drawn through the nozzle 2 upon the lower 1 5 flue or flues is removed by a current of air inportion of the jet-nozzle is avoided. In order, 6 5

duced by a vacuum caused by a steam-jet. however, to more fully guard against the pos- The object of the invention is to so comsibility of lodgment at this point, I have propensate between the vacuum pull in the tube vided an auxiliary jet 7, comprising a returnand the steam-jet that a minimum steam-jet bend pipe tapped into the jet-nozzle 5 and 20 will resultin athorough cleaningof the boilerreturning at a point to discharge the jet of tube. steam upon the lower side of the jet-nozzle 5,

A further object is to extend the jet centhereby providing for auxiliary assistance to trally of the exit for the matter removed from the vacuum pull by reason of the discharge the tube to thereby obviate the ordinary lodgthrough the mouth of the jet-nozzle 6. The

25 ment of soot, &c., upon the jet. body portion at of the cleaner is provided with A further object is to provide an auxiliary a boss 8, preferably formed integral and coj etwhereby the steam is projected to the base incident with the jet 5, having an integral of the primary jet to further guard against screw-thread into which is screwed a nipple lodgment of the scale, soot, &c., from the tubes 9, upon which is screwed a union 10, having 0 in the egress portion of the cleaner. a depending auxiliary corrugated pipe 11,

In the drawings, Figure l is a side elevaupon which is fastened a hose 12, leading to tion of a cleaner constructed in accordance the steam supply. The opposite end of the with my invention shown as inserted to a union 10 is closed by a screw-threaded end boiler-tube. Fig. 2 is a longitudinal central 13 of a handle 14, by which to manipulate the 35 vertical elevation of the same to disclose the cleaner in the insertion of the nozzle in the construction of the jet and the means for atdifferent fines of the boiler. taching the steam-hose thereto, also showing It will be seen that in the manufacture of an auxiliary jet connected with the primary the entire cleanerl have reduced. the price to jet for insuring against lodgment of the mata minimum number, and consequent slight 4o ter drawn from the flue. expense, and that in the construction of the 1 designates the body of the cleaner, comessential parts I have overcome the objecprising a nozzle 2 for insertion into the flue 3 tions heretofore existing by providing for a and a vertical discharge portion 4. Formed flue-cleaner and uninterrupted travel of the integral with the body portion is a jet-nozzle matter removed from the flue in its exit 4 5 5, extending from the inner periphery of the through the body portion a. 9 5

discharge portion 4 centrally thereof and prefhat I claim is erably horizontally from the shell of the body In a fiuecleaner, a body comprising a verportion a to the center of the diameter of the tical cylindrical portion and a tapered nozzle same and then drawn at right angles with a at right angles thereto with a steam-jet pipe 50 flaring mouth 6. The advantage of this conarranged diametrically opposite the nozzle I00 

